Soon:
COPs (LS2 perhaps, but I'd like COPs for wiring and TSE's kit makes me )
Intercooler (Waiting on the piping to show up in the mail)
ARTech SS line - replacing the last rubber line for a warranty replacement
MS3/MS3X and custom-built harness
Bodywork and paint
ACT clutch to replace the F1 stage 3 crap.

Retap front housing to 3/8NPT (Just run a tap down it real fast, 3/8BSP is 1 thread per inch larger than 3/8NPT)
Put your 3/8NPT 90 in front housing's sensor hole.
Put 3/8 to 1/8 NPT fitting in previous 90
Use a bit of thread sealant, put the sensor in the now 90'd hole. (BSP fits fine in NPT if it's male, but not if it's female.)

Test fit now-90ed front housing. It should fit fine with some clearance for the rear firewall. NOTE: The rear sensor placement is critical. You may have to replace several times, or even potentially do slight grinding on the sensor tap to get it all aligned.

This is the only hard part of the thing. Once you get the rear sensor-to-front-housing fixed, the rest is cake.

If you have a MS, you can put the rear housing on the front, then route the front to the heater via heater hose and retain the nipples for coolant underneath.

Also, if you have a MS, you can just block off the front at the thermostat still retaining nipples for coolant underneath, and then route from the cursed water plug, a...3/8NPT to 5/8NPT adapter w/nipples (I'm not sure, you'll have to recheck - I just welded pipes together rather than using NPT fittings), and to the heater.

If you are relying on the stock ECU, you -have- to get a BEGi block off plate, use the sensor in front, and route from the cursed waterplug as above.

YMMV, the BEGi looks awfully clean, although option 2 and 3 are basically identical to the BEGi and as a bonus get rid of the cursed water seal headache forever. I've tried all 3 of the above, you don't need the BEGi front blockoff plate if you have a MS. You can make the MS run your fans fine.

Ah, sorry. I saw the pipe, it immediately reminded me of some modern "art" exhibits I've seen, and I decided "Hey, perfect excuse for a build thread."

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BTW what is the WI rig

I have experience with a (very) cheap pump that is rated for use appropriate to WI. The black pipe ties into a sensor and some other crap to go with it to test it and see if it works out in actual use.

It may suck, and burn terribly. We'll see - if I can throw on WI for sub-$100, I'm all for throwing in WI. If I can't, it's not worth it.

This is when I was just starting to pull it apart. (Why, yes, it's had at least 3 colors. I'm seriously considering repainting it white at this point.) Everything, including carpet, is gone.

This is in the middle of the first application of sound dampening paint, first round of stitch welding (MIG), and putting on a new top.

The second round of sound dampening.

The third round of sound dampening - this is the test fitting and preparing to apply the ever-great Reflectix.

Hey, all the sound dampening finished! Yes, three layers for those who have been keeping track - I'll be going back in to move it up to 4 layers this spring.

Here is the finished interior!

Time to dry-ice the mothertrucking trunk!

This is the final stages of dry icing the tar out of the trunk, in preparation for yet-more sound dampening material.

This is the first layer of sound dampening paint applied in the trunk.

This is the finished trunk.

Minus the worn stock carpet, I'm actually extremely happy with how it turned out. I'll be going back in to add in another layer of sound dampening material (Weight increase is negligible - probably ~25lbs in all for a dramatic decrease in sound) this spring, with (hopefully) Goodwin Racing's premium plush carpet set.

Nice, I've been thinking about this for a while. Nothing inside the doors or the trunk tunnels? What "sound dampening paint" is that, and how many square feet of what mat did you use? Yes, Reflectix is awesome stuff. You will have to let us know how you like it when its done!

Nice, I've been thinking about this for a while. Nothing inside the doors or the trunk tunnels?

There is a small amount in them currently (~1 layer), I am going to be going back over it all this spring and re-doing it however.

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What "sound dampening paint" is that,

A combination of Secondskin Spectrum and DEI Spray-on Boom Mat

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and how many square feet of what mat did you use?

Approximately ~30 to 35 SqFt for the interior+trunk of FatMat RattleTrap, and only about ~20 SqFt of Reflectix. I anticipate my second round of sound dampening will use all of the RattleTrap up (Edit) 50SqFt in total, although the second round will be intensely focused on primarily the transmission tunnel and firewall.

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Yes, Reflectix is awesome stuff. You will have to let us know how you like it when its done!

The first phase of sound dampening was done last summer. My primary goal for it was to reduce road noise/NVH/that sort of thing while improving insulation (See Reflectix). It was a drastic reduction, far more than I had imagined, and actually helped a great deal with insulation as well.

I'm currently on a crusade to eliminate all rattles/unnecessary noise from the Miata that I can.